In the London Review of Books, T.J. Clark reviews Paul Klee at Tate.
Cubism remained a matrix. Klee realised that others had bent it to their purposes: Mondrian’s sensibility, after all, was as remote from Picasso’s as Klee’s own. In and around 1923 Klee found a way to make even the tight cubist grid do the work he wanted – by inserting enough brighter and lighter squares into the chequerboard, each of them beckoning the eye through the foreground into depth, so that the surface came to look as if it were a kind of transparency ‘really’ hung across a glimpsed infinity on the other side. Once he had the basic idea he often returned to it, varying the size of the squares, the regularity of the grid, the translucency of the veil. The series of glittering watercolours and oils done in 1931 and 1932, using stippled dots or tiny oilpaint tesserae – paintings like Castle Garden or Semi-Circle with Angular Features – strikes me as the high point of this kind of space-making. The Whole Is Dimming (Das Ganze Dämmernd), reads the title of one of them, summing up the vision.